Home / 42,976.26-64,421.96-18,023.40

Finding the Fourth Proportional to 42,976.26, 64,421.96 and 18,023.40

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Solution

The fourth proportional to 42,976.26, 64,421.96 and 18,023.40 is: 27,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,976.26 : 64,421.96 = 18,023.40 : x
  2. Step 2: Convert to fraction form
    42,976.26/64,421.96 = 18,023.40/x
  3. Step 3: Cross multiply
    42,976.26x = 64,421.96 × 18,023.40
  4. Step 4: Simplify right side
    42,976.26x = 1,161,102,663.75
  5. Step 5: Solve for x
    x = 1,161,102,663.75/42,976.26
  6. Step 6: Final answer
    x = 27,017.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.